Flame expander for fuel oil burners



Jan, 30, 1945. w. HESSE FLAME EXPANDER FOR FUEL OIL BURNERS Filed April17, 1943 INVENTOR. V/LL /AM M5555 A 7 TORNE' Y Patented Jan. 30, 1945FLAME EXPANDER FOR FUEL OIL BURNERS William Hesse, Brooklyn, N. Y.

Application April 1'7, 1943, Serial No. 483,383

1 Claim.

This invention relates to an improvement in flame expanders for fuel oilburners.

An object of this invention is to provide a fuel oil furnace whichutilizes the gun type of burner with an expanded shield so as to causethe gases from the normal flame to be further ignited and therebyincrease the efliciency to a high degree of such furnace.

Another object of this invention is to provide an inexpensive and ruggeddevice which may be added as an accessory to an oil burning furnace.

With the foregoing and other objects in view, the invention resides inthe novel arrangement and combination of parts and in the details ofconstruction hereinafter described and claimed, it being understood thatchanges in the precise embodiment of the invention herein disclosed maybe made within the scope of what is claimed without departing from thespirit of the invention.

A practical embodiment of the invention is il lustrated in theaccompanying drawing, where- Figure 1 is a sectional view of the flameexpander illustrated in use with a conventional type of oil burner.

Figure 2 is a plan view with the top of the oil burner furnace removed.

Figure 3 is a perspective view of the flame expander per se.

Referring to the drawing, l denotes a conventional type of fuel oilfurnace provided with the oil burner H on it which has the usual gun l2directed into the furnace from which the flame l3 normally strikes therear wall I4.

In order to increase the efficiency of the fuel oil burning furnace, theexpander I5 is mounted therein which expander comprises a rectangularplate l6 provided with a flange I1 and engaging lip I8.

In order to make the expander sturdy and rugged, reinforcing bars orrods I9, 20 and 2! are suitably secured to the rear portion of theexpander to the forward portion of the lip l8.

It will be noted that the expander is placed in the furnace at an angleor incline upwardly so that as more especially shown in Figure 1 of thedrawing the rear portion of the expander rests upon the rear wall of thefurnaceat 22 and the front portion of the expander is supported by thelip 18 upon the furnace portion 23.

In order to center the flame expander within the interior opposite sides24 and 25 of the furnace, the expander is provided with a projecting lug2B and adjustable lug 21 s'lidably mounted on the lip 18 by means ofelongated opening 28 and friction holding pins 29.

In the normal operation of the ignition of the fuel injected by the oilburner the flame therefrom normally strikes the rear wall and as aresult the unignited gases further strike the flame expander whichprevents said gases from escaping and as a result causing-said gases tobe further ignited and thereby giving off a tremendously expanded orenlarged tota-l flame.

. It is to be distinctly understood that this invention is applicable inany shape or form of fuel oil burning furnace which furnace may beround, oval, square and so forth.

It will thus be seen that there is provided a device in which theseveral objects of this invention are achieved, and which is welladapted to meet the condition of practical use.

As various possible embodiments might be made of the above invention,and as various changes might be made in the embodiment above set forth,it is to be understood that all matter herein set forth is to beinterpreted as illustrative and not in a limiting sense.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

A flame expander for fuel oil burners, comprising a 'base plate, aplurality of spaced reenforcing members secured to the rear of saidplate, an angular flange extending upwardly fom one edge of said plate,a lip projecting outwardly from said flange, and a pair of lugs carriedby opposed ends of said lip, one of said lugs being adjustable withrespect to said lip.

WILLIAM HESSE.

